Electric lamp and discharge devices: systems – Cathode ray tube circuits – Cathode-ray deflections circuits
Patent
1983-02-01
1986-09-16
Tarcza, Thomas H.
Electric lamp and discharge devices: systems
Cathode ray tube circuits
Cathode-ray deflections circuits
358166, H01J 2956, H04N 514
Patent
active
046124829
ABSTRACT:
The scan pattern of a raster scan video display system is modified to provide a sinusoidal raster scan, so that derived scan lines made up of pixels of adjacent scan lines are generated to enhance vertical scene resolution. A sinusoidal deflection circuit and microdeflection yoke produce the desired waveform, and a distortion compensation circuit corrects for distortions of the desired waveform.
REFERENCES:
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patent: 2222934 (1940-11-01), Blumlein
patent: 3418519 (1968-12-01), Ferrier et al.
patent: 3792196 (1974-02-01), Wendland
patent: 4301473 (1981-11-01), Wallace et al.
Biberman, L. M., "Perception of Displayed Information", 1973 Plenum Press, New York-London, pp. 65 thru 75.
Beamon, W. S., Snyder, H. L., AMRL-TR-75-63 Aerospace Medical Research Laboratory, An Experimental Evaluation of the Spot Wobble Method of Suppressing Raster Structure Visibility, Nov. 1975, pp. 5 thru 23.
Snyder, H. L., Beamon, W. S., Gutmann, J. C., Dunsker, E. D., AMRL-TR-79-91, An Evaluation of the Effect of Spot Wobble Upon Observer Performance with Raster Scan Displays, Jan. 1980, pp. 9 thru 44.
Beamon, W. S., III, "The Effects of Raster Structure Suppression on Visual Thresholds, Target Acquisition Performance, and Image Quality", Dissertation submitted to Graduate Faculty of Virginia Polytechnic Inst., & State Univ., Jun. 1979, pp. 127-136.
Beamon, III William S.
Tegge, Jr. Edward H.
Baker Carl W.
General Electric Company
Issing Gregory C.
Lang Richard V.
Tarcza Thomas H.
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